题目内容
12．I don't think it is _______ unsuccessful competition，because it has offered us _______valuable experience for the next competition．（ ）| A． | a； a | B． | an；/ | C． | an； a | D． | /； a |
分析 我认为这不是一个不成功的竞赛，因为它为我们下一场比赛提供了宝贵的经验
解答 答案：B．根据competition是可数名词的单数形式，应用不定冠词；根据unsuccessful中u字母的发音为/?/，是元音音素可知，应用an；又根据experience"经验"是不可数名词，不能用不定冠词可知，第二个空应不填．故选B．
点评 不定冠词有两个．根据后接单词词首音素的不同采用不同的形式．当词首音素为元音时，用an；当词首音素为辅音时，用a．
练习册系列答案
口算能手系列答案
相关题目
20．
One morning during my second month of the art school，our teacher gave（51）usquiz（小测验）．I was always a hard-working student and I did well in all my subjects．So it seemed a piece of cake for me．I had finished the questions successfully and easily，until I read the last one：What is the name of the woman（52）whocleans the school building every day？（53）Surelyit was some kind of joke．I had seen the cleaning woman several times．She was tall，thin and about 50years old，（54）buthow could I know her name？It was（55）noneof my business．I handed in my paper，（56）leavingthe last question empty．
Just before the class ended，one student asked if the last question would count towards our quiz grades．
"Of course it will，"said the teacher．"You（57）will meetmany people in the future．All people are important．And all jobs need to（58）be respected．They work hard．They deserve（值得） your attention and care，even if all that you can do（59）isto smile and say hello．"
I've never forgotten that lesson．Actually，that was the（60）meaningfullesson in my life．I also learned that the cleaning woman's name was Ally Black．
| leave surely we respect be but meet who meaningful none |
Just before the class ended，one student asked if the last question would count towards our quiz grades．
"Of course it will，"said the teacher．"You（57）will meetmany people in the future．All people are important．And all jobs need to（58）be respected．They work hard．They deserve（值得） your attention and care，even if all that you can do（59）isto smile and say hello．"
I've never forgotten that lesson．Actually，that was the（60）meaningfullesson in my life．I also learned that the cleaning woman's name was Ally Black．
7．-It's said that Chinese people rushed to buy as much salt as possible in the spring of 2011．
-____ people found it was a hoax，all the salt in the supermarkets had been sold out．（ ）
-____ people found it was a hoax，all the salt in the supermarkets had been sold out．（ ）
| A． | After | B． | Before | C． | While | D． | Until |
10．______ Lucy ______Linda is going to see Titanic 3D this Sunday because they will have to take an English test．（ ）
| A． | Both，and | B． | Neither，nor | ||
| C． | Not only，but also | D． | Either，or |